it's probably linked to the ads, since I use adblock I can't really help you any, but that's what it
sounds like, because I use to operate sites without this feature. what you could do is monitor what ads you see and
report these to Sheqel and they will be looked into. sponsors are famous for putting in "harmless" adware/etc
to "monitor" what people look at and sometimes they put in dangerous Trojans. however the html looks harmless
at first, until the admin puts up said ads and then they are placed in afterward or during, so forth.
you can use adblock (for firefox) or download and install ie pro if that's what you use and you can by-pass ever
seeing the ads again let alone getting a virus attack/other and don't worry the site still gets sponsored click and
pay, etc but the person using adblock doesn't see these said ads, also cuts out the noise making ads. it's an
option as well, best of luck getting that off your system, sometimes they never go away or it takes a boot scan to get
them all. avast, anti-marware and other scanners typically can get rid of 99% of them. sorry you got infected and hope
you can get it cleared up shortly.